Home / 101,212.39-151,911.50-51,328.28

Finding the Fourth Proportional to 101,212.39, 151,911.50 and 51,328.28

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Solution

The fourth proportional to 101,212.39, 151,911.50 and 51,328.28 is: 77,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,212.39 : 151,911.50 = 51,328.28 : x
  2. Step 2: Convert to fraction form
    101,212.39/151,911.50 = 51,328.28/x
  3. Step 3: Cross multiply
    101,212.39x = 151,911.50 × 51,328.28
  4. Step 4: Simplify right side
    101,212.39x = 7,797,356,419.08
  5. Step 5: Solve for x
    x = 7,797,356,419.08/101,212.39
  6. Step 6: Final answer
    x = 77,039.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.